package Chapter01;

public class Circular {
    int y;
    int x;
    double r=3.14;
    //输出信息
    public void show(){
        double zhouchang=r*x*x;
        double mianji=r*r*x;
        System.out.println("周长为:"+zhouchang+"面积为:"+mianji);
    }
}
